Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Jonathan Keeling"'
Autor:
Brendan P. Marsh, Ronen M. Kroeze, Surya Ganguli, Sarang Gopalakrishnan, Jonathan Keeling, Benjamin L. Lev
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011026 (2024)
We describe simulations of the quantum dynamics of a confocal cavity QED system that realizes an intrinsically driven-dissipative spin glass. A close connection between open quantum dynamics and replica symmetry breaking is established, in which indi
Externí odkaz:
https://doaj.org/article/8d5d5fe08e7647e9b65b264190b7a006
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011010 (2024)
While several numerical techniques are available for predicting the dynamics of non-Markovian open quantum systems, most struggle with simulations for very long memory and propagation times, e.g., due to superlinear scaling with the number of time st
Externí odkaz:
https://doaj.org/article/14c79b752b3b45e49293712d354529ac
Autor:
Piper Fowler-Wright, Kristín B. Arnardóttir, Peter Kirton, Brendon W. Lovett, Jonathan Keeling
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033148 (2023)
For a model with many-to-one connectivity it is widely expected that mean-field theory captures the exact many-particle N→∞ limit, and that higher-order cumulant expansions of the Heisenberg equations converge to this same limit whilst providing
Externí odkaz:
https://doaj.org/article/8fc8838dcec748408dbf59a04a59da19
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033078 (2023)
We introduce a general numerical method to compute the dynamics and multitime correlations of chains of quantum systems, where each system may couple strongly to a structured environment. The method combines the process tensor formalism for general (
Externí odkaz:
https://doaj.org/article/9c750267b9a141a0a2e6e4b6b269971a
Publikováno v:
PRX Quantum, Vol 4, Iss 2, p 020326 (2023)
Cavity quantum electrodynamics (QED) with cooperativity far greater than unity enables high-fidelity quantum sensing and information processing. The high-cooperativity regime is often reached through the use of short single-mode resonators. More comp
Externí odkaz:
https://doaj.org/article/aef1c3a4be86456ba43199057ebd2755
Autor:
Roberta Palacino, Jonathan Keeling
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p L032016 (2021)
We consider a generalized Dicke model with U(1) symmetry, which can undergo a transition to a superradiant state that spontaneously breaks this symmetry. By exploiting the difference in timescale between atomic and cavity dynamics, one may eliminate
Externí odkaz:
https://doaj.org/article/8b37d70355004dc0978f8a4dfd303fcd
Autor:
Brendan P. Marsh, Yudan Guo, Ronen M. Kroeze, Sarang Gopalakrishnan, Surya Ganguli, Jonathan Keeling, Benjamin L. Lev
Publikováno v:
Physical Review X, Vol 11, Iss 2, p 021048 (2021)
We introduce a near-term experimental platform for realizing an associative memory. It can simultaneously store many memories by using spinful bosons coupled to a degenerate multimode optical cavity. The associative memory is realized by a confocal c
Externí odkaz:
https://doaj.org/article/b537a487aeba410d8ca2d25930469a9e
Autor:
Alicia J. Kollár, Alexander T. Papageorge, Varun D. Vaidya, Yudan Guo, Jonathan Keeling, Benjamin L. Lev
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)
When a single mode optical cavity is coupled to a Bose-Einstein condensate, one usually observes a single mode of light when strongly pumped. Here the authors observe a supermode in the output of a multimode cavity and relate this to a signature of a
Externí odkaz:
https://doaj.org/article/2093b7db092d4a08abc748f2835dc609
Autor:
Peter Kirton, Jonathan Keeling
Publikováno v:
New Journal of Physics, Vol 20, Iss 1, p 015009 (2018)
We present the non-equilibrium phase diagram of a model which can demonstrate both Dicke–Hepp–Lieb superradiance and regular lasing by varying the coherent and incoherent driving terms We find that the regions in the phase diagram corresponding t
Externí odkaz:
https://doaj.org/article/b174d3a289e24f1cbfd3adffb824febb
Autor:
Varun D. Vaidya, Yudan Guo, Ronen M. Kroeze, Kyle E. Ballantine, Alicia J. Kollár, Jonathan Keeling, Benjamin L. Lev
Publikováno v:
Physical Review X, Vol 8, Iss 1, p 011002 (2018)
Optical cavity QED provides a platform with which to explore quantum many-body physics in driven-dissipative systems. Single-mode cavities provide strong, infinite-range photon-mediated interactions among intracavity atoms. However, these global all-
Externí odkaz:
https://doaj.org/article/310febae06214252993d7381a701798d